C:\Users\WangLinYong\Anaconda3\lib\site-packages\torch\optim\lr_scheduler.py:131: UserWarning: Detected call of `lr_scheduler.step()` before `optimizer.step()`. In PyTorch 1.1.0 and later, you should call them in the opposite order: `optimizer.step()` before `lr_scheduler.step()`. Failure to do this will result in PyTorch skipping the first value of the learning rate schedule. See more details at https://pytorch.org/docs/stable/optim.html#how-to-adjust-learning-rate warnings.warn("Detected call of `lr_scheduler.step()` before `optimizer.step()`. "

这个警告是由PyTorch的学习率调度器(lr_scheduler)引发的。它建议在调用`lr_scheduler.step()`之前先调用`optimizer.step()`，以确保学习率调整是基于最新的优化器状态进行的。如果不按照这个顺序调用，PyTorch会跳过学习率调度的第一个值。

你可以按照警告中提到的链接访问PyTorch的文档，了解更多有关如何调整学习率的详细信息。

相关问题

Traceback (most recent call last): File "D:\ANACONDA\lib\site-packages\tqdm\_tqdm.py", line 889, in __del__ self.close() File "D:\ANACONDA\lib\site-packages\tqdm\_tqdm.py", line 1095, in close self._decr_instances(self) File "D:\ANACONDA\lib\site-packages\tqdm\_tqdm.py", line 454, in _decr_instances cls.monitor.exit() File "D:\ANACONDA\lib\site-packages\tqdm\_monitor.py", line 52, in exit self.join() File "D:\ANACONDA\lib\threading.py", line 1029, in join raise RuntimeError("cannot join current thread") RuntimeError: cannot join current thread

这个错误通常是由于在主线程结束时，有某个子线程还在运行，不能加入当前线程，导致无法正常退出。您可以尝试在程序结束前手动调用 `tqdm.close()` 来关闭所有正在运行的进度条，然后再等待所有子线程完成任务并退出。这样应该可以解决这个错误。如果还有其他问题，请提供更多详细信息，我会尽力帮助您解决。

Traceback (most recent call last): File "G:\anaconda\Scripts\jupyter-notebook-script.py", line 6, in from notebook.notebookapp import main File "G:\anaconda\lib\site-packages\notebook\notebookapp.py", line 43, in from jinja2 import Environment, FileSystemLoader File "G:\anaconda\lib\site-packages\jinja2\__init__.py", line 12, in from .environment import Environment File "G:\anaconda\lib\site-packages\jinja2\environment.py", line 25, in from .defaults import BLOCK_END_STRING File "G:\anaconda\lib\site-packages\jinja2\defaults.py", line 3, in from .filters import FILTERS as DEFAULT_FILTERS # noqa: F401 File "G:\anaconda\lib\site-packages\jinja2\filters.py", line 13, in from markupsafe import soft_unicode ImportError: cannot import name 'soft_unicode' from 'markupsafe' (G:\anaconda\lib\site-packages\markupsafe\__init__.py)报错如何解决

这个报错提示是无法从markupsafe模块中导入soft_unicode函数。这可能是由于markupsafe模块的版本问题导致的。

您可以尝试使用以下命令更新markupsafe模块：

pip install --upgrade markupsafe

如果更新markupsafe模块无法解决问题，您可以尝试重新安装jupyter notebook：

pip uninstall jupyter notebook
pip install jupyter notebook

如果问题仍未解决，请尝试卸载并重新安装Anaconda，确保使用最新版本的Anaconda。